Which Statement About Membrane Proteins Is Not True

question 59

Multiple Choice

Which statement about membrane proteins is not true?

• A) They all extend from one side of the membrane to the other.
• B) Some serve as channels for ions to cross the membrane.
• C) Many are free to migrate laterally within the membrane.
• D) Their position in the membrane is determined by their tertiary structure.
• E) Some play roles in photosynthesis.

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Definitions:

Exposure and Response Prevention

A behavioral therapy technique for treating anxiety disorders that involves exposing the patient to anxiety-inducing stimuli while preventing their habitual response to the anxiety.

Benzodiazepines

A class of psychoactive drugs used primarily for treating anxiety, insomnia, and seizures by enhancing the effect of the neurotransmitter GABA in the brain.

Diazepam (Valium)

A medication belonging to the benzodiazepine class, commonly used to treat anxiety, muscle spasms, and seizures, as well as to provide sedation.

Alprazolam (Xanax)

A prescription medication commonly used to treat anxiety and panic disorders; it is a benzodiazepine which enhances the function of neurotransmitters in the brain.